Date: Sun, 31 May 2009 05:27:18 -0700
Reply-To: Jims More <morejims@yahoo.com.au>
Sender: "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From: Jims More <morejims@yahoo.com.au>
Subject: Re: inflated exp(b) in logistic regression
Content-Type: multipart/alternative;
Hi delliott, Scott, etc,
I am interested of this issue. I apologize for interferring. What is the range of exp(b) to be acceptable?
Jims
--- On Sun, 31/5/09, SR Millis <srmillis@yahoo.com> wrote:
From: SR Millis <srmillis@yahoo.com>
Subject: Re: inflated exp(b) in logistic regression
To: SPSSX-L@LISTSERV.UGA.EDU
Received: Sunday, 31 May, 2009, 4:13 AM
Have you checked the collinearity diagnostics?
Scott R Millis, PhD, ABPP (CN,CL,RP), CStat, CSci
Professor & Director of Research
Dept of Physical Medicine & Rehabilitation
Dept of Emergency Medicine
Wayne State University School of Medicine
261 Mack Blvd
Detroit, MI 48201
Email: smillis@med.wayne.edu
Tel: 313-993-8085
Fax: 313-966-7682
--- On Sat, 5/30/09, delliott <dianecelliott@GMAIL.COM> wrote:
> From: delliott <dianecelliott@GMAIL.COM>
> Subject: inflated exp(b) in logistic regression
> To: SPSSX-L@LISTSERV.UGA.EDU
> Date: Saturday, May 30, 2009, 11:33 PM
> Hi,
> I'm running a logistic regression (n=870) with 8 IVs most
> of which are
> continuous. For one of my continuous IVs I'm getting an
> inflated exp(b) of
> 86.73 which seems wrong. The B is 4.4, se = 2.2 and
> wald = 3.9 which all
> seem okay. I did box-tidwell to check linearity of
> logit assumption and am
> not violating this assumption. Any ideas why this is
> going on?
>
> On a related note, my constant has a wald of 59.6- is that
> okay? seems high
> --
> View this message in context: http://www.nabble.com/inflated-exp%28b%29-in-logistic-regression-tp23799527p23799527.html
> Sent from the SPSSX Discussion mailing list archive at
> Nabble.com.
>
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